#include<stdio.h>
int main()
{
	int i;
	char a[5]={"love"};
	char b[5]={0};
	int size;
	size=sizeof(a);
	for(i=0;i<4;i++)
	{
		b[size-i-2]=a[i];
	}
	printf("please enter old char string:%s\n",a);
	printf("please enter new char string:%s\n",b);
	return 0;
} 
